Home > Listing of Enamels > Vintage EnamelClick Image To View Larger 849 Hunters (Opal) (TE) $0.00 Weight 1 oz (+$4.00) 8 oz (+$32.00) 16 oz (+$64.00) 1955:+:4,1957:+:32,1958:+:64 Quantity: - + Opalscent, cataloged, Thompson Enamel for Copper, Silver, Gold, Iron and Steel. This enamel is "medium fusing" and should be fired at 1450 to 1550 degrees F. for approximately 2 to 4 minutes. All Enamel is pre-1990, 80 mesh and lead bearing.